Is there anyway to add in the code to narrow why the JSON file is invalid? Like pin pointing the issue?

MessageSendFailure: Message send failure for update ================================== |  RemoteHumanReadableError: The operation couldn’t be completed. XPC error received on message reply handler |   |  BSServiceConnectionErrorDomain (3): |  ==NSLocalizedFailureReason: XPC error received on message reply handler |  ==BSErrorCodeDescription: OperationFailed This is what is said when i try to resume to try to preview.

Using the JSONLint that Eskimo Suggested i was able to locate the invalidation with the JSON file which was an extra comma before one of the coordinates. Now i am getting the error that follows: MessageSendFailure: Message send failure for update ================================== |  RemoteHumanReadableError: The operation couldn’t be completed. XPC error received on message reply handler |  BSServiceConnectionErrorDomain (3): |  ==BSErrorCodeDescription: OperationFailed |  ==NSLocalizedFailureReason: XPC error received on message reply handler

I was supposed to take a course that did this at the local school, but they are no longer offering the course. So Im looking for assistance from anyone who can assist.

@Claude31 thank you so much for letting me know that was my mistake, i appreciate your guidance. This is the Rating form Im trying to add to the LandmarkDetail that keeps showing up in a small corner with it looks like a spacer before it. im not sure how to fix the issue to so that the form is inline with the landmarks, but i want the review page on each of the landmarks. Thank you! struct RatingForm: View {     @Binding var rating: Int     @State private var review: String = ""     var label = ""     var maximumRating = 5     var offImage: Image?     var onImage = Image(systemName: "star.fill")     var offColor = Color.gray     var onColor = Color.yellow          var body: some View {         Form {         VStack {             HStack {                 Text("How would you rate this Landmark")             }//hstack             HStack{                          if label.isEmpty == false {                 Text(label)             }//if label             ForEach(1..<maximumRating + 1, id: \.self) { number in                 image(for: number)                     .foregroundColor(number > rating ? offColor : onColor)                     .onTapGesture {                         rating = number                     }//tapgesture             }//foreach         }//hstack            _HSpacer()                          HStack{                 Text("Add a review")             }//hstack             HStack{                TextField ("Review the Landmark",                           text: $review                 )                 .frame(                     width: 300,                     height: 50,                     alignment: .center)             }//hstack         }//vstack             Button(action: {                                  print("Button tapped")                              }, label: {                 Text("Submit Review")                     .frame(                         width: 285,                         height: 50,                         alignment: .center)                     .background(Color.pink)                     .foregroundColor(.white)                     .cornerRadius(8)                                                   }//label     )//button         }//form                             }//body     func image(for number: Int) -> Image {         if number > rating {             return offImage ?? onImage         } else {             return onImage         }//else     }//func image } struct RatingForm_Previews: PreviewProvider {     static var previews: some View {         RatingForm(rating: .constant(4))              }//static var }//struct